孔盖

At the end of flange: a closed and valve cover openings of the valve openings corresponding parts.

底法兰：一个封闭与阀盖开孔相对的阀体开孔的零件。

Furnace shell by section and steel plate welding full circle tubular, the chamber becomes by the 0.6g/cm3 ultra light quality micro bead energy conservation fireproof brickwork, his/her the endophragm all around even installment heater element, the crucible salt bath's chamber and the furnace shell fills the aluminum silicate textile fiber felt and the inflation heat preservation powder thermal insulation material, in the chamber places the high-temperature steel crucible, uses in the splendid attire salt fluid, the crucible cover by two semicircle constitutions, but rotates nimbly, covers has two holes, supplies the journal to hang the work piece.

炉壳由型钢和钢板焊接成圆筒形，炉膛由0.6g/cm3超轻质微珠节能耐火砖砌成，其内壁四周均匀安装加热元件，坩锅盐浴炉的炉膛与炉壳间填充硅酸铝纤维毡和膨胀保温粉保温材料，炉膛内置放耐热钢坩埚，用于盛装盐液，坩埚盖由两个半圆构成，可灵活转动，盖上有两个孔，供支承轴吊挂工件。

Furnace shell by section and steel plate welding full circle tubular, the chamber becomes by the 0.6g/cm3 ultra lightquality micro bead energy conservation fireproof brickwork, his/her the endophragm all around even installment heater element, the crucible salt bath's chamber and the furnace shell fills the aluminum silicate textile fiber felt and the inflation heat preservation powder thermal insulation material, inthe chamber places the high-temperature steel crucible, uses in the splendid attire salt fluid, the crucible cover by two semicircle constitutions, but rotates nimbly, covers has two holes, supplies the journal to hang the work piece.

炉壳由型钢和钢板焊接成圆筒形，炉膛由0.6g/cm3超轻质微珠节能耐火砖砌成，其内壁四周均匀安装加热元件，坩锅盐浴炉的炉膛与炉壳间填充硅酸铝纤维毡和膨胀保温粉保温材料，炉膛内置放耐热钢坩埚，用于盛装盐液，坩埚盖由两个半圆构成，可灵活转动，盖上有两个孔，供支承轴吊挂工件。

Using the relations between Hermite and Laguerre-Gaussian modes and expanding the window function of two-dimensional rectangular hard-edged apertures into a finite sum of complex Gaussian functions, the propagation of complex- argument Laguerre-Gaussian beams through a paraxial optical ABCD system with a rectangular hard-edged aperture is studied. An analytical propagation equation is derived and used to study the diffraction at the rectangular hard-edged aperture and the focusing properties of complex-argument LG beams.

利用拉盖尔－高斯模和厄米－高斯模的变换公式，并使用将二维矩孔光阑窗口函数展开为有限个复高斯函数之和的方法，得到了复宗量拉盖尔－高斯光束通过含矩形硬边光阑近轴ABCD光学系统的变换的解析传输公式，并对复宗量LG光束通过矩形硬边光阑的衍射和聚焦特性进行了研究。

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap covering an aperture, such as the gill cover in some fishes or the horny shell cover in snail s or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap cover in g an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

A lid or flap cover ing an aperture, such as the gill cover in some fishes or the horny shell cover in snails or other mollusks.

鳃盖覆盖在一孔或缝隙上的盖，如一些鱼类的鳃或覆盖在蛇或其它软体动物身上的角质壳

Saying nothing, the man took a bottlenecked gourd, placed it on the ground, and put a coin with a square hole in the center over the top. He poured toil from a wooden ladle drop-by-drop into the gourd, without spilling a sinle drop on the coin. The man then turned to Chen Yau-tz and said,"That was also nothing. It's just a matter of practice makes perfect."Thus, the meaning of this idiom is that skill comes from repeated practice.

卖油的不说一句话，随手拿出一个葫芦放在地上，用一个方孔的铜钱盖在葫芦口上慢慢地用木杓子装满了油滴下去，只见油从钱孔中滴进去，可是铜钱上面一点儿油也没有沾上，这时卖油的才说：「我这也没甚么，只是熟能生巧罢了。

According to the working procedure chart of theZH1105W diesel engine's gear cap analysis workpiece's precision, the surface roughness, thespecification, the processing spot size, the shape structure,material degree of hardness, the work piece rigidity and thedifferent of the components batch size to definite technique andtechnological process, determine aggregatemachine-tool's overall plan. Consider to theirregularity components but have high accuracy holes to beprocessing. So,"two holes at aface" is the best localization plan.

根据ZH1105W柴油机齿轮室盖的工序图分析其精度、表面粗糙度、技术要求、加工部位尺寸、形状结构、材料硬度、工件刚性及零件的批量的大小不同，确定被加工零件工艺方法和工艺过程，确定该组合机床的总体设计方案；考虑该零件表面结构的不规则性但有较高精度的孔需要加工，定位基准选择&一面双孔&是最佳的方法。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。